{"id":"001447316","type":"book","title":"The Border Castles of the Bishopric of Utrecht c. 1050-1528","publisher":"Publications du Craham, Presses universitaires de Caen,.","publisher-place":"[Caen","pages":"225-241","container-title":"Château et frontière : actes du colloque international d'Aabenraa (Danemark, 24 - 31 août 2012","author":[{"family":"Janssen","given":"Hans L."}],"issued":{"raw":"2014"}}